What is an inner-outer voice coil?
The inner-outer voice coil is a special voice coil structure. Its wire is wound on the voice coil frame in an alternating manner. Compared with the traditional single-layer winding, this structure has the following advantages:
Better heat dissipation performance: The alternating inner-outer winding can increase the heat dissipation area, effectively reduce the working temperature of the voice coil, and increase the life of the voice coil.
Reduce the risk of short circuit between layers: The inner-outer winding can disperse the distance between the wires, reduce the possibility of short circuit between layers, and improve the reliability of the voice coil.
Improve high-frequency response: The inner-outer winding can optimize the electromagnetic field distribution of the voice coil, improve the high-frequency response, and make the sound clearer and brighter.
Features of 4-inch inside-outside voice coils
Size: 4 inches is the diameter of the voice coil, which is a common size for mid- and low-frequency units.
Structure: It adopts a structure with two layers of alternating winding inside and outside, and the wire is usually made of copper or aluminum and other materials with good conductivity.
Application: It is widely used in various audio equipment, such as car audio, home theater, Bluetooth speakers, etc.
Advantages of 4-inch inside-outside voice coils
Excellent sound quality: Due to good heat dissipation and high reliability, the inside-outside voice coil can provide more stable and clearer sound.
Strong power handling capacity: The excellent heat dissipation performance enables the voice coil to withstand greater power and is suitable for high-intensity working environments.
Longer life: It reduces the risk of voice coil damage and extends the service life of audio equipment.
Choice of 4-inch inside-outside voice coils
When choosing a 4-inch inside-outside voice coil, the following factors need to be considered:
Impedance: Select the appropriate voice coil impedance according to the output impedance of the power amplifier.
Power: Select a voice coil that can withstand the corresponding power according to the rated power of the speaker.
Sensitivity: Select a suitable voice coil according to the sensitivity of the speaker to obtain the best sound pressure level.
Frequency response: Select a suitable voice coil according to the frequency response requirements of the speaker to obtain a smooth frequency response curve.
